Would imagine the crease is from storage and the flatness is due to them being fairly wide.
yeah i thought that at first, but after applying extremely high heat to the tubes to flatten them (which didn't do anything), i think it may be the way they are made or the way certain tubes are made (like this Kenda tubes)
@Tonts started
London Fixed Gear and Single-Speed is a community of predominantly fixed gear and single-speed cyclists in and around London, UK.
This site is supported almost exclusively by donations. Please consider donating a small amount regularly.
Would imagine the crease is from storage and the flatness is due to them being fairly wide.